If I want to protect a picture on my website. I put some pictures on my website, but I want to allow my readers only to read them and not copy them.
The most common way to protect images is to put up a no-right-click script on the page. This prevents people from right-clicking and choosing "Save Image As...". A fancier way to protect your images is to shrink wrap them. Then when someone does right click on it, they don't get the image they're expecting. Finally, you can watermark your images so that if they do steal it, everyone knows it's from your site.
What Do You Do?
How do you protect your digital images? Post a comment on this blog entry, or answer borivath directly in the forum.